Home / 7,786.89-11,682.63-3,342.15

Finding the Fourth Proportional to 7,786.89, 11,682.63 and 3,342.15

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Solution

The fourth proportional to 7,786.89, 11,682.63 and 3,342.15 is: 5,014.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,786.89 : 11,682.63 = 3,342.15 : x
  2. Step 2: Convert to fraction form
    7,786.89/11,682.63 = 3,342.15/x
  3. Step 3: Cross multiply
    7,786.89x = 11,682.63 × 3,342.15
  4. Step 4: Simplify right side
    7,786.89x = 39,045,101.85
  5. Step 5: Solve for x
    x = 39,045,101.85/7,786.89
  6. Step 6: Final answer
    x = 5,014.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.